A lot of factors determine what size unit you’ll need. The size of your home, how well it’s insulated and more can go into figuring out what size unit is required. A system that is too large can make your home too humid and cause problems with mold. A system that is too small won’t be able to keep up and it will run constantly, increasing your energy bill. Only a qualified HVAC technician can determine what size unit is best for your home.

HVAC experts recommend an annual inspection to make sure everything is operating properly. Your technician will inspect your system and repair or replace any malfunctioning components.

You can improve your indoor air quality by clearing out dust from your home with frequent dusting and vacuuming. You can also get a qualified technician install devices that can purify the air such as UV light units and air filters

HVAC experts recommend reducing usage by turning the thermostat up or down, as needed, to reduce use when you’re not at home. Annual maintenance will also help extend the life of your unit. Your AC technician can change the air filter and clean out the drain lines to prevent future issues.

Most AC units have a 5 year warranty of longer. You can check the label on the unit to find out its manufacturing date.